Patch "qeth: delete napi struct when removing a qeth device" has been added to the 3.14-stable tree

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This is a note to let you know that I've just added the patch titled

    qeth: delete napi struct when removing a qeth device

to the 3.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     qeth-delete-napi-struct-when-removing-a-qeth-device.patch
and it can be found in the queue-3.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 7831b4ff0d926e0deeaabef9db8800ed069a2757 Mon Sep 17 00:00:00 2001
From: Ursula Braun <ubraun@xxxxxxxxxxxxxxxxxx>
Date: Mon, 4 Jul 2016 14:07:16 +0200
Subject: qeth: delete napi struct when removing a qeth device

From: Ursula Braun <ubraun@xxxxxxxxxxxxxxxxxx>

commit 7831b4ff0d926e0deeaabef9db8800ed069a2757 upstream.

A qeth_card contains a napi_struct linked to the net_device during
device probing. This struct must be deleted when removing the qeth
device, otherwise Panic on oops can occur when qeth devices are
repeatedly removed and added.

Fixes: a1c3ed4c9ca ("qeth: NAPI support for l2 and l3 discipline")
Signed-off-by: Ursula Braun <ubraun@xxxxxxxxxxxxxxxxxx>
Tested-by: Alexander Klein <ALKL@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/s390/net/qeth_l2_main.c |    1 +
 drivers/s390/net/qeth_l3_main.c |    1 +
 2 files changed, 2 insertions(+)

--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -906,6 +906,7 @@ static void qeth_l2_remove_device(struct
 		qeth_l2_set_offline(cgdev);
 
 	if (card->dev) {
+		netif_napi_del(&card->napi);
 		unregister_netdev(card->dev);
 		card->dev = NULL;
 	}
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3333,6 +3333,7 @@ static void qeth_l3_remove_device(struct
 		qeth_l3_set_offline(cgdev);
 
 	if (card->dev) {
+		netif_napi_del(&card->napi);
 		unregister_netdev(card->dev);
 		card->dev = NULL;
 	}


Patches currently in stable-queue which might be from ubraun@xxxxxxxxxxxxxxxxxx are

queue-3.14/qeth-delete-napi-struct-when-removing-a-qeth-device.patch
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